Veteran documatarian D.A. Pennebaker's DON'T LOOK BACK (1967), which followed Bob Dylan on the eight-day English tour that marked the last hurrah of his acoustic folk period, is the gold standard by which serious rock documentaries are judged. And by those standards, this film falls short the fictitious VELVET GOLDMINE (1998) is a far more evocative representation of the brief moment when glam rock, which Bowie embodied, seemed a revolutionary challenge to sexual and sartorial mores. But as a document of the ever-mutable musician's signature persona, a wraithlike androgyne with a head full of apocalyptic dreams, it's fascinating. Shot the day of Bowie's last Z...